Belching isn't just rude. If you're a cow it's downright disasterous, from an environmental standpoint. All of that passing of gas puts a bunch of methane into the atmosphere, contributing to global warming.
But, modern plant-breeding methods may lead to new diets for cows that make them belch less.
Scientists in Britain say the key is developing new varieties of food that are easier for cattle to digest and also provide a proper balance of fiber, protein and sugar.
Greenhouses gases are widely blamed for causing global warming. Scientists say average temperatures will rise by between two and six degrees Celsius by the end of the century, causing droughts, floods and violent storms.
ntroducing easier-to-digest legumes that tend to reduce methane emissions is an example of an approach scientists are beginning to explore. Legumes such as clover and alfalfa are commonly used for animal fodder.
It also requires farmers to balance cows' legume intake with other food and to develop different species of grass that are also more digestible.